Datasheet Summary
Three-Phase Sensorless Fan Driver IC
Features
AND BENEFITS
- Closed-loop speed control
- Speed curve configuration via EEPROM
- Programmable deceleration time
- I2C serial port
- Sinusoidal modulation for reduced audible noise and low vibration
- Sensorless (no Hall sensors required)
- Low RDS(ON) power MOSFETs- 3 A capability
- Minimal external ponents
- PWM speed input
- FG speed output
- RD rotor lock output
- Lock detection
- Soft start
- Standby mode
- Shorted load protection
DESCRIPTION
The A5931-3 three-phase motor driver IC incorporates sensorless sinusoidal drive to minimize vibration for high speed server fans. Sensorless control eliminates the requirement for Hall...